From: Intel <intel.com>
Date: Wed, 4 Dec 2013 09:00:00 +0000 (+0100)
Subject: ixgbe: residual fix about resetting big Tx queues
X-Git-Tag: spdx-start~11058
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=5a6d9897f91f6bb4b2dad8b789aecda1376dd00f;p=dpdk.git

ixgbe: residual fix about resetting big Tx queues

Index overflow when resetting big queues was partially fixed in
bcf457f8c0d64a5c (ixgbe: fix index overflow when resetting big Tx queues)
and better fixed in
e8ae856140bce4e4 (igb/ixgbe: fix index overflow when resetting big queues)

But this version (1.5.2r0) has residues of the initial fix from 1.5.1r0.

Signed-off-by: Intel
---

diff --git a/lib/librte_pmd_ixgbe/ixgbe_rxtx.c b/lib/librte_pmd_ixgbe/ixgbe_rxtx.c
index 6f8291893d..d0c8cbbbff 100644
--- a/lib/librte_pmd_ixgbe/ixgbe_rxtx.c
+++ b/lib/librte_pmd_ixgbe/ixgbe_rxtx.c
@@ -1813,9 +1813,9 @@ ixgbe_reset_tx_queue(struct igb_tx_queue *txq)
 		volatile union ixgbe_adv_tx_desc *txd = &txq->tx_ring[i];
 		txd->wb.status = IXGBE_TXD_STAT_DD;
 		txe[i].mbuf = NULL;
-		txe[i].last_id = i;
-		txe[prev].next_id = i;
-		prev = i;
+		txe[i].last_id = (uint16_t)i;
+		txe[prev].next_id = (uint16_t)i;
+		prev = (uint16_t)i;
 	}
 
 	txq->tx_next_dd = (uint16_t)(txq->tx_rs_thresh - 1);